antiphrasis
From LSJ
ἐφ' ἁρμαμαξῶν μαλθακῶς κατακείμενοι → reclining softly on litters, reclining luxuriously in covered carriages
Latin > English (Lewis & Short)
antĭphrăsis: (better written as Gr.), is, f., = αντίφρασις,
I the use of a word in a sense opposite to its proper meaning; as, lucus, quod minime luceat, Diom. p. 458 P.; cf. Charis. p. 247 P. al.
Latin > French (Gaffiot 2016)
antĭphrăsis, is, f. (ἀντίφρασις), antiphrase : Diom. 462, 14 ; Char. 276, 13.